Performance of Selected Waste Materials as Aggregates in Concrete

Abstract

Waste materials have many unfavourable effects on the environment which are deleterious to the human. The high cost of construction materials demands another suitable substitute. Due to the poor recycling of waste materials, engaging the waste materials in the construction represent process has many benefits especially, on the environment, economy, and health. In this study, waste materials such as glasses, ceramic tiles, and rubber tyres that have been used for many decades were tested, prioritized, and used as aggregates in concrete. In addition, the research reveals the influence of the respective waste materials namely glass, ceramic tiles, and rubber tyres on the concrete whether hardened or fresh concrete. This research looks at the differences between the British Standard (BS) and the American Code Institute (ACI) methods in the mix design of concrete and concrete properties of the non-conventional aggregates concrete and compares it with the normal concrete. Moreover, this research explores the mechanical properties of the reinforced non-conventional aggregates concrete. Also, the crack patterns of the reinforced non-conventional concrete illustrates experimentally. To do this, a finite element model was prepared. the results demonstrated that ceramic tile and fine glass aggregates are suitable as for concrete. It was also concluded that sand and gravel should not be replaced more than 50% and 25% respectively. The Finite Element Model and the laboratory experiments have an acceptable degree of corroboration.